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:- object(conditionals).

	% missing else part
	a :-
		(b -> c).

	% cut in the test part
	p :-
		(! -> q; r).

	% missing parenthesis in the presence of cuts
	qux :-
		!,
		a(1) -> a(2) ; a(3).

	quux(X) :-
		(X = x -> b; c).

	b. c. q. r. a(_).

:- end_object.
